/usr/share/pyshared/txaws/s3/acls.py is in python-txaws 0.2-0ubuntu10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | from txaws.util import XML
PERMISSIONS = ("FULL_CONTROL",
"WRITE",
"WRITE_ACP",
"READ",
"READ_ACP")
class XMLMixin(object):
def to_xml(self):
return "".join(self._to_xml())
class AccessControlPolicy(XMLMixin):
def __init__(self, owner=None, access_control_list=()):
self.owner = owner
self.access_control_list = access_control_list
def _to_xml(self, buffer=None):
if buffer is None:
buffer = []
buffer.append("<AccessControlPolicy>\n")
if self.owner:
self.owner._to_xml(buffer=buffer, indent=1)
buffer.append(" <AccessControlList>\n")
for grant in self.access_control_list:
grant._to_xml(buffer=buffer, indent=2)
buffer.append(" </AccessControlList>\n"
"</AccessControlPolicy>")
return buffer
@classmethod
def from_xml(cls, xml_bytes):
root = XML(xml_bytes)
owner_node = root.find("Owner")
owner = Owner(owner_node.findtext("ID"),
owner_node.findtext("DisplayName"))
acl_node = root.find("AccessControlList")
acl = []
for grant_node in acl_node.findall("Grant"):
grantee_node = grant_node.find("Grantee")
grantee = Grantee(grantee_node.findtext("ID"),
grantee_node.findtext("DisplayName"))
permission = grant_node.findtext("Permission")
acl.append(Grant(grantee, permission))
return cls(owner, acl)
class Grant(XMLMixin):
def __init__(self, grantee, permission=None):
self.grantee = grantee
self.permission = permission
def _set_permission(self, perm):
if perm not in PERMISSIONS:
raise ValueError("Invalid permission '%s'. Must be one of %s" %
(perm, ",".join(PERMISSIONS)))
self._permission = perm
def _get_permission(self):
return self._permission
permission = property(_get_permission, _set_permission)
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
buffer.append(ws + "<Grant>\n")
if self.grantee:
self.grantee._to_xml(buffer, indent + 1)
if self.permission:
buffer.append("%s <Permission>%s</Permission>\n" % (
ws, self.permission))
buffer.append(ws + "</Grant>\n")
return buffer
class Owner(XMLMixin):
def __init__(self, id, display_name):
self.id = id
self.display_name = display_name
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
buffer.append("%s<Owner>\n"
"%s <ID>%s</ID>\n"
"%s <DisplayName>%s</DisplayName>\n"
"%s</Owner>\n" % (ws, ws, self.id, ws, self.display_name,
ws))
return buffer
class Grantee(Owner):
def _to_xml(self, buffer=None, indent=0):
if buffer is None:
buffer = []
ws = " " * (indent * 2)
buffer.append("%s<Grantee "
'xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'
' xsi:type="CanonicalUser">\n'
"%s <ID>%s</ID>\n"
"%s <DisplayName>%s</DisplayName>\n"
"%s</Grantee>\n" % (ws, ws, self.id, ws,
self.display_name, ws))
return buffer
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